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through March 1943 by building a wooden cabin on the frozen lake, installing refrigeration equipment and a nest of 6 inch cold air ducts, and then increasing the height of the ice wall around the cabin. As weight increased, the bottom of the "hull" was sawn free from the lake ice and the model floated free. In June the refrigeration was switched off, but the model lasted the whole summer before melting and sinking.
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A diving expedition to the site in 1985 found the remains of the model on a steep slope just off-shore at a depth between 26 and 43 metres (85 and 141 ft). Although the refrigeration equipment was removed before sinking, the wooden walls of the hull, an "incredible jumble" of cold air ductwork
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Pykrete construction material for the full-sized ship was to be a composite of ice and sawdust, maintained by refrigeration. The first experiments had used natural lake ice, in a
Canadian winter. The model ship was to use plain ice, but partly natural and partly refrigerated. Construction proceeded
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used as part of the insulation remained at the site. As of June 26, 2011 only the west wall of the structure remained intact; the rest has fallen to pieces and lies at depths of between 40 and 90 feet (12 and 27 m) in depth. An underwater plaque at the site notes its part in World War II
236:. In January 1943, Patricia Lake was chosen as the test site for building a prototype vessel. The planned vessel was to be 2,000 feet (600 m) long and the prototype was to be a 1:10 scale model of this. In fact, the
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Patricia Lake was chosen for this work on account of having rail connections at Jasper and being a suitably cold, remote area that already had military training involvement in the area as camouflage. There were also
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The site continues to be visited by recreational divers. The wreckage has deteriorated in recent years and has suffered from vandalism and graffiti.
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It is connected by
Pyramid Lake road and hiking trails to the town of Jasper, as well as other tourist sites such as
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was to approximately this scale, but the length was only 60 feet, about a third of scale.
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Link, dry socket vs normal healing 09/01/2019 at 10:44 am
Comment (2012-11-12).
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Journal of the History of Science, Technology and Medicine
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Initial studies of natural lake ice had been carried out at
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321:"Operation Habbakuk: A World War II Vessel Prototype"
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Patricia Lake is notable for its involvement during
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225:from an ice-based composite material termed "
402:: CS1 maint: numeric names: authors list (
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380:"Code name: Habbakuk - 'Most Secret'"
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192:Princess Patricia of Connaught
21:Patricia Lake (disambiguation)
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62:Patricia Lake / Lake Patricia
29:Patricia Lake / Lake Patricia
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915:Whooping Crane Summer Range
573:Rivers and lakes in Alberta
365:"The Patricia Lake Project"
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145:30 metres (98 ft)
111:52.90278°N 118.10194°W
910:Peace–Athabasca Delta
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339:"Summer Trails Guide"
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963:Jasper National Park
319:Langley, Susan B.M.
176:Jasper National Park
116:52.90278; -118.10194
78:Jasper National Park
19:For other uses, see
190:. It was named for
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387:. Retrieved
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347:. Retrieved
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215:World War II
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199:Pyramid Lake
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786:Chestermere
600:Bridal Veil
445:Hydrography
234:Lake Louise
114: /
102:118°06′07″W
89:Coordinates
957:Categories
917:(wetlands)
806:Minnewanka
791:Kananaskis
763:Reservoirs
658:Beaverhill
582:Waterfalls
515:Little Bow
490:Clearwater
389:2020-08-25
349:21 October
293:References
99:52°54′10″N
844:Athabasca
826:Gleniffer
738:Ste. Anne
678:Crowsnest
653:Athabasca
620:Lundbreck
590:Athabasca
495:Crowsnest
465:Athabasca
269:history.
250:Doukhobor
246:Mennonite
859:Crowfoot
836:Glaciers
811:Glenmore
801:McGregor
718:Miquelon
703:La Biche
698:Jackfish
683:Des Arcs
630:Sunwapta
605:Crescent
545:Red Deer
398:cite web
276:See also
74:Location
879:Vulture
781:Brazeau
776:Barrier
771:Abraham
753:Wabamun
748:Utikuma
708:St. Cyr
693:Hubbles
663:Bistcho
625:Panther
540:Pembina
485:Brazeau
449:Alberta
266:bitumen
227:Pykrete
180:Alberta
82:Alberta
864:Hector
821:Sikome
743:Sylvan
728:Pigeon
688:Garner
668:Claire
530:Oldman
475:Beaver
470:Battle
457:Rivers
188:Jasper
184:Canada
133:Canada
898:Other
884:Wapta
869:Peyto
733:Santé
648:Amisk
640:Lakes
615:Elbow
610:Crypt
555:Smoky
550:Slave
535:Peace
505:Ghost
500:Elbow
217:with
170:is a
128:Basin
673:Cold
520:Milk
404:link
351:2012
248:and
238:beam
201:and
172:lake
849:Bow
595:Bow
510:Hay
480:Bow
447:of
229:".
174:in
959::
400:}}
396:{{
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23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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